package Demo1;

import javax.swing.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.concurrent.Callable;

public class CardList {
    public static String[] SUIT={"♣","♦","❤","♠"};
    public static List<Card> BuyCards(){
        List<Card> list=new ArrayList<>();
        for (int i = 0; i < SUIT.length; i++) {
            for (int j = 1; j <=13; j++) {
                Card card=new Card(SUIT[i], j);
                list.add(card);
            }
        }
        return list;
    }

    public static void shuffle(List<Card> list){
        Random random=new Random();
        for (int i = list.size()-1; i >0; i--) {
            int index= random.nextInt(i);//每次进来随机生成0到i的值，然后进行交换
            swap(list,i,index);
        }
    }
    public static void swap(List<Card> list,int i, int j){
        Card temp=list.get(i);
        list.set(i,list.get(j));
        list.set(j,temp);
    }


    public static void main(String[] args) {
        List<Card> list=BuyCards();
       // System.out.println(list);
        shuffle(list);
        System.out.println(list);
        List<List<Card>> hand=new ArrayList<>();
        List<Card> hand1=new ArrayList<>();
        List<Card> hand2=new ArrayList<>();
        List<Card> hand3=new ArrayList<>();
        hand.add(hand1);
        hand.add(hand2);
        hand.add(hand3);
        for (int i = 0; i < 5; i++) {
            for (int j = 0; j < 3; j++) {
                Card card=list.remove(0);
                hand.get(j).add(card)  ;
                    }

            }
        System.out.println("第一个人的牌"+hand.get(0));
        System.out.println("第二个人的牌"+hand.get(1));
        System.out.println("第三个人的牌"+hand.get(2));
        System.out.println("剩下的牌"+list);//剩下的牌都在list里
        }
    }

